Auto-fork



H. A. BEAN.'

AUTO FORK.

APPLICATION FILED IIIAYI4.19I8.

Patented Jan. 18,1921.

8 SHEETS---SHEET I.

I II

W1 IIx/Ess:

A TTORNE Y H. A.'BEAN.

AUTO FORK.

AFPUCATION FILED MY4, 19H3. I Y 1 $366,156. Patented Jan. 18, 1921.

a SHEETS-SHEET 2.

A TTORN E Y H. A. EN,

AUTO FQRK.

Pr/mman FILED MM' m. 19m

{I fbmma 12m. 18,1921.V

El SHEETS-SHEET 3.

JIL

v A ../AWINVENTOR.

wfg-Mm H. A. BEAN.

AUTO FORK.

APPLICATION FILED MAY I4. |918. 1,866,156. Patented Jan.18,1921.

8 SHEETS-SHEET 4.

. .IN VEN TOR. W I TNESS.'

A TTORNEY H. A. BEAN.

AUTO FORK.

APPLICATION FILED MAY I4. 191B.

Patented Jan. 18, 1921.

, 4. a v 6 g sngssfgHEET 5L El @l I N VEN TOR. WI TNESS.'

A TTORNE Y H. A.' BEAN.

Auw FGRK. APPLiCATION` FILED IMM/14. 19H3. y 1,356,155 Patentad Jan. 18,1921. 'f 8 SHEETS-SHEET 6v 120 f/ E .15E-lll mf Ellau, A. BEAN. AUTO FORK.

APPLICATION FILED PII/IY I4, )918A 1,365,156, Patented Jan. 18, 1921.

O o *W @QM 22.; 226

a f4@ I ,//0 mf@ /ff/.eL mf@ y INVENTOR.

BY ffm A'l'ToRNEY.

WI TNESS:

H. A. BEAN.

AUTO FGRK.

8 SHEETS-SHEET 8- UNITED STATES il PATENT OFFICE.`

HARRY A. BEAN.. on NEsscIrY, KANSAS.

.mimo-FORK. y'

speinanoii of Landsmann. Pated Jan, 1g, 192L Appiicann flied my 14, 191s. Seriana. 234,369.

.To @ZZ whom fit ffaagi/ concern Be it `known that I, I-lnnnr A. BEAN, a citizen of the United States, residing` at Ness City, in the county oi Ness and State. of .lilansaa have inventedcertain new and useiul improvements in liuto-Forks, o1 which which will hereinafter appear,` the invention may be said to embody a boom movable `verticaliy and laterally and provided with an endless carrier embodying one or more forks for taking grain rom the stack and con dnctinp, it to the threshing machine.

The apparatus capable oi? conducting grain 'from astaclr to a threshing; machine in, substantially, a nniiorm `marmer as rapidly7 as said threshing' machine can handle the Lgrain, and is so arranged that it can be readily controlled by one operator.`

ln order that the invention may be `full y understood, reference will` .new be made to the accoinpanyingl drawings, in which t 'Figure 1 is a broken, side elevation oi the 'iront portion oi a thresher equipped with my apparatus.-

l ig. 2 isla plan View oiI the same with Home oi? the parts removed. y

Hipp is an ordained, broken,`vertical sec`- tional vievv on line lik-lll: oi" Fidji..

-i is an irregular `vertical, sectional view on line lVHlV of Fig. .8.

Fig. 5 is an enlarged, cross sectional View oit a hand rail and associated parts, on line l V oFig. 1. i

Fig. 6 an enlarged,irregular,ysectional vieyvon line Vle-Vlot Fig. 53. i

Fig. 7 is a side `elevation of. one o'lifthe iioi'ks and associated partel in` position to take grain from the top ci; a stack. y y

ilig. 8 is aside ele 'ation oi' thesame parts with the iiork in carrying); position with a charge oif grain taken from the stack. y

` Fig. 9 a plan View oi. the parts disclosed by Fip;7

` Fig. 10 is an enlarged vertical section on line KnotFig. 7.

11 is a brein-ni,irregular section of a paivland ratchet and associated parts, for holding@ i'o H in. the position disclosedby Fig. 8.

Fig'. 12 is a broken, irregular vertical sec tionl,`ta`ken on line X111 oil? Fig'. `16,with some of the parts removed. Y Fig. lis a broken, vertical section showing the position of certain parts disclosed by Figgilf, ait-cr the i'ork `hasbei-ni tripped to discharge its load. i

Fig` 111 is a broken, side elevation oil-f a modified form oi?` ifork and associated parts, in position to remove grain from the stack.

" Fig'. 15 is a broken, side elevation of the same parts with the fork in position to carry acharge of grain to tliethresher.

Fig. 16 .is a plan view of the parts disclosed "by Fig. 14, excepting the boom.

Fig'. 17"isa detail oir' a latch-bar and its actuatingmeans.`

Fig. 18 is a detail of a stop and associated parts. Referring now in detail tothe different parts, A designates the threshing `machine which is equipped with `my apparatus and" a self-feeder B, from which an inclined plane ,C extends to then'ronnd to prevent grain from .falling1 beneath said feeder B.

1 designates a pair of standards `which` support, approximately, .all of the present mechanism and are secured to the thresher Apby braces 2, 3 and 4. Said Standards have -foldable lower `and upper members 1u and 2a, mounted on pivots 5 and 5a, respectively, so that the standards may be shortened preparatory to moving thethresher A from one place to another.

6 designates a segmental track projecting iiroin the standart s! 1 at a point above the tlireslier il.. Rollers i to traverse said segmental track 6 are mounted' on b 1ackets on a frame 8, ijiivotal-ly-monnted upon a jack shaft 1.0, jol-irnaled inl cross `bars 12, lixedto the standards 1 (Figs. 1, 3 and L1). Rollers la, mounted on brackets 15 depending from the trame 8, engage a turn-table 16 and keep the same from tipping,r on a vertical pin 1"?,

depending from the forward portion of said y the full or dotted line positions disclosed by Fig. 1.` The boom 19 is held in the extended full line position disclosed by Fig. 1, by a threaded rod 26, a nut 26", and aclamp 27,

which latter is connected to brackets 28 and 29, extending upwardly from the lower beams 31 and 32, of the boom sections 22 and 23, respectively. The boom sections 22 and 23 also embody upper beams 35 and 36, operably-connected to the lower beams 31 and Y 32 by, parallel vmembers A37 and 37?, respectively. The rear'end of the beam 35 is connected by aV curved spring 38 to the rear end of the beam 31, while the forward end of the y,beam 36 isV connected by a curved spring 39 l. Vto the forward end' of the beam 32'.A By employing the sprines 38 and39, the beains 35 yis in any of its variouspositions.

Said conveyer 40 travels on v`idlers 41, mounted en the boom, and is driven by a sprocketwheel 42, fiXedly-mounted upon the shaft 20, which is driven by a train of gear- `v--ing (Figs. 1, 3 and-4), consisting of a bevel ffmeshing'with the cog wheel46 35' wheel 43 fixed upon one end of the shaft 20, asmall bevel wheel 44 intermeshing with ,thebe'vel wheel 43 and mounted upon the 4 lower endv of'a vertical shaft 5, a cog wheel 46'xedly-mounted upon the upper end of said vertical'shaft 45, a cog wheel 47 interand loosely mounted upon the pin 17, a bevel gear 49 Yintegral with the lcog wheel 47, a bevel,

wheel 50 intermeshing with the bevel wheel '49 and mounted upon one end of a horizontal shaft 51, a bevel wheel 52 mounted upon the opposite yend ofthe shaft-51, a bevel wheel 53 fixed upon the shaft 10 and intermeshing with thefbevel gear 52, a large friction disk 55slidably mounted upon the shaft `10 but caused.. to ,rotate therewith with wellknown means' as a feather and a small friction wheel 56 bearing against the friction wheel 55 and ,slidab'le upon a shaft 5S, journaled in the standards 1 and provided at one lend with va Vpulley 60, driven by a belt 61 Y from a pulley 62 on the thresher. The friction wheel is yieldably-held in engagement with the friction wheel 56, by a spring 64 fwhich is kept under the desired tension by a'hand lever 65. The Vspeed of the Jfric- V55 tion wheely 55 and the conveyer 40 is regulated by shifting the friction wheel 56 toward or away from the shaft 10, such shifting being accomplished by a hand lever .766. The foregoing con/'struction permits Vthe 0 boomto'be swung laterally to either side on the pin 17, or. the shaft 10 withoutv interfering with the operation of the conveyer 40.

Alh'en it vis `desired to. swing the boom laterally to 'either side for a considerable distitanes (see dottedlineslfig. 2) it is swung upper ends of the standards 1.

with the frame 8 from the shaft 10. The latter operation is performed through the intermediacy of a cable 70, attached at its central portion to an eye 71 on the forward portion of the frame 8. Said cable extends in opposite directions from the eye 71, over guide rollers 72 to a windlass 73 mounted in brackets 74 secured to the cross bars 12. After the frame 8 has been swung laterally with the boom 19, said `frame may be secured from further movement by a toothed wheel 75, fixed to the windlas-s 73, and a dctent 76 secured to the uppermost luaeket 7-1.

The forward end of the boom 19 is adjustably supported by a cable 76, running around a. sheave 77 and attached at one end to the bracket 2S and at its opposite end to a drum 80, mounted in a yoke 8.1 secured at its forward lower ends to a transverse bar 81, :red to the beam 32. The drum 80 is rotated by a cog wheel S2, driven by a pinion 83 mounted on a crank shaft 61, which may be rotated in one direction to lower the forward end of the boom, or rotated in an opposite direction to raise said 'for ard end. The sheave 77 is journaled in a yoke 36, yieldably-connected by a rctractile spring S3 to a collar S9, swiveled on a stud at the The spring- 88 acts in the nature of a countcrbalance Lo the boom, so that it may be raised and lowered to a limited degree by hand without operating the drum 80.

For convenience of the operator in swing-- ing the boom 19, laterally, or up and down. I provide two pairs of hand rails 92 (Figs. 1 and 5) paralleling the boom and carried by a frame mounted ou pivots 95 carried by brackets 96 extending upwardlyv from he beam 32, so that said frame 94 may be adjusted to the full and dotted line positions, respectively, disclosed by Fig. lVhr-n in use the operator grasps the adjacent uppermost hand rail 92 while one of the lowevinos'.: hand rails may rest upon the stack. ."'fittev being adjusted to the full or dott d line positions the frame 94 is secured to a segment 100 cn one of the bracke ,s 96, by a pair of clamps 101` Any suitable number of forks for carrying the grain from the stack .zo the taediu- B of the thresher A may be employed. ln Fig. 1, of the drawings l have shown three forks connected equal distances apart to be conveyer 40 to travel therewith around the boom 19. The construction of the forks and their controlling mechanism is alike.y and more clearly shown in Figs. 7 to 13, inclusive.

Each fork 105 consists of a plurality of the forward hanger 110 and a companion hanger 110, `through the intermediacy of the pivots "108. MTheconnecting-bars 100 are of such length as to cause the hangers 110`t0 con-` ;Verge toward their ends and hold said connecting `barsin inclined position, so tlrat they .m turn will-coact inholdingthe fork `105,111 the inclined positions disclosed by Figs. 7 and 8. The'4 hangers areprovided at their upperportionswith sleeves 111., loosely y mounted on bolts 112 connected to` opposite sides ofthe fork carriage 114. Said `carriage embodies a pair of parallelflongtul dinal `bars 116 and a pair of/U-meinl'lers `118 `uniting the bars 116 and provided at each `upper end with a1 pair of rollers` 120q which traverse the boom 11.9. The carriage 114 is operably-connected at its for- `,ward 'portion to the eonyeyer 40 by a draw-bar 122r and yieldably-connected at its rear portionlto saidconveyer by a spring 123, which jlatterrestralns the carriage from running faster than `the conveyer 40 as said carriage passes downward around the fon ward end of the boom 19.` i i i l As the fork approaches the top ofthe stack, it is held inthe slightly `inclined position disclosed on Fig. 7 by a` roller detent 125 which is `yieldably `held in a recess 126 on a segmental ratchetbar 127 ,i by a coil spring 128 (Fig. 11), bearing at `one end against a yoke 130, carryingthe rol1er`125,

and a shoulder 131 `on atension screw 132,

i threaded in a bar 133 secured to the lower portion ofthe rear hanger110, to which the yoke 130- is also operably-connected by a pivot 1.35. y I

The segmental ratchet bar 127 is secured at `its upper `forked end to the rearmost U- `member 118 and` at itslower end to a pair of bars 138, depending from the rear ends of the carriage bars 116` The lower T shaped end of the ratchet bar 127 projects `into the path of the rearmost hanger `110 and limits the backward movement thereof. A; pawl. 140, piyotally connected to theirearmost hanger 1,10coacts with the ratchet bar 127 in holding said rearmost hangeru110 in y Vertical position, so thatit in turn Willhold the fork in the slightly upturned` position disclosed by Fig. 8, aftersaid fork has taken achargeof grain from the stack. A pin 141. connected to the rearmost hanger 110limits the downward movement of the pawl 140,

as it falls out of engagement with the ratchet bar 127 whenzthe carriagejpasses up-` wardly around the rear-end of the boom and assumes the inverted position disclosed by Fig.` `1. i r

A retainer 143 coacts with theA fork105 in holding the charge of grain on said fork.

`Said retainer 143 i"s swiveled at `its upper end upon the foremost sleeve l111 and; is con- `trolled by a `pair of rods 145 'extending 1through said retainerand piyotallymount- :ward sleeve i 111i;

ed at their lower ends on bolts 146 secured toL the y foremost hanger i 110.

Nuts 147 tlrreadednpon the rods 145, prevent the retainer 143 from Vmoving down independently .ot "said rods 145, but coil springs 148 inter# posedbetween `the retainer 143 and nuts 14.9

onjtlre outer ends of the rods 145, permit said retainer `toyield upwardly to a slight degree to accommodate itself tothe charges p assesouer the stack. l,

As thezforl; 105,'witha charge of grain, passes over the threcher feeder B, said fork is automatically tripped and swings down to deposit its charge upon said feeder. Tripof `grain picked up, by` the fork each time it `ping 'of the fork `is accomplished by a cam 150and an` arm 151,` which latter is pivot* ally-mounted upon the forward pivot 108. Saidarni 151 is provided at its `rear end witha roller 1513, adapted to enter a recess y 154 in the cam150 and thus hold the fork `with-anantifriction roller 162, which successively contacts blocks 196 and 197 at the frontfand rear ends, respectively, of the boom 19` (Fig. 1). y In` thetravel of the fork 105 around the front end of the boom 19,

`the arm 151 swingsagainst the cam 150, Fig.

18, which is then rotated `tozengage and hold the roller 153 when the roller 162 contacts `the bloclrllQ. The forkl 105 is then held in position `to take grain `from the Vstack to y the thresher feeder B,l upon `which said grain `is deposited when the roller 162 is depressed :by the block 197. Theroller 162 is held in `its raised .and lowered positionsbyrthepres sure :ofthe detent roller 167 againstthe cam Then the `roller `162 is `depressediby the block 107 iti forces thevlink 158 downwardly,

whichin turn rotates the ca`m`1f50 toltbe `11051111011 disclosed by Fig. 13, therebyrelcas- Y ing `the` roller `163 and permitting the fork i l to;` swing downwardly and deposit its charge of grano;` uponfthefeeder B. `The cam `150 is: retained' in the position` disclosed by Fig.` 13, by amoller" detent 167 mounted on alever 168, fulcrumed at `169- and connected at its llowcrend `to al coil spring' "170whereby said detent 167 isyieldably-held in a recess 172 curedtoythe carriage connecting bars 109.`

A bow spring 17 5, secured to the arm 151 yieldably-holds the fork `105 in proper rela- `tion to said arm 151,but allows thefforlr to spring` baclrwaildly slightly should it str' anfobstruction:while ,scrapingup` grain 'from rio inthe periphery of the cam 150.,` `@ne end i ofthe spring 170 and the fulcrum 169 are `125 ftheground.'v When cleaning up grain from the ground the arm 151 is prevented from swi'ngingforwardly too far and allowing the fork` todrag loosely' over the ground by a stop 180, which is automatically lowered into the path of the roller153(l"ig. 12), by a latch bar 181 mounted on va `pivot 182 and provided atfitsupper rear'end with an anti-- frictionrollerlSl. The forward end of the latchbar 181 has a pinand-slot connection 185 with the upper end of an arm 186, carrying at its lower Aend the stop 180 and provided with slots 187 through which guides v188,fiXed tothe forward hanger 110, ex-- tend. Y

Theroller end ofthe latch bar 181 is i' yieldably-held in the raised position disclosed Vby Fig. 12, through the intermediacy of a spring detent 190 entering a notch 191 in the segmental portion 192 of said trigger..

Said detent 190 also holds the roller end of the latch Vbar 181'in lowered position by en- 'tering va notch'193 in the segment 192. An

arm 194: depending from one of the carriage bars 116,- supports the detent 190 and its actuatingV spring 190g. Y .A

When-therearend of the latch bar 181 is 4held in lowered position, as just described, ity holds the stop 180 in raised position, so that the roller 153 may pass thereunder and allow'the fork 105 to swing backward to the position disclosed by the uppermost fork on Fig. 1, as the carriage passes upward on top of the boom 19.` Y

. When cleaning up grain from the ground theblock 195 is'removel to allow the fork ',105 to hang down and scrape the ground,

and a block 164 is placed in position 'at the forward end ofthe boom in the path of the roller 184, sothe same will strike and pass V"over'said block 164 and cause the latch bar 181 to lower the stop Y180 into the pathof the .roller153, to prevent the arm 151 from swinging backward beyond' the dotted position 12. After the fork has traveled substantially, the length of the boom and discharged the grain on the feeder B, the

roller 184 is depressed by a block 165 placed imposition at the rear underside'of the boom, Fig. 1. By'thus depressing the roller end j of the 'latch bar 181, the stop 180 is raised out of the `path of thevroller 153 to' permit the fork to swing backward to the position yreo.

A is thenvstarted up andthrough the interf Vmediacyof the gearing drives the conveyor 40 continuously until the thresher is stopped. Asthe conveyer l0 travels around the boom Yit carries the forks therewith. Each hanger 110 backwardly to the position disclosed by Fig. 8, in which position they arc retained by the pawl 140 and the ratchet bar 127. As the forward hanger swings backward, it, through the intermediary of the rods 145, pulls the retainer 113 down upon the charge of grain and prevents it from being blown oli' by the wind before being discharged upon the feeder B. Discharging of the grain upon the feeder B is automatically accomplished by the block 197 tripping` the roller 162, which, through the intermedacy of the intervening mechanism, rotates the cam 150 out of engagement with the roller 153 (Fig. 13), and permits the fork 105 to swing down to deliver the grain. llVhen the stack has been reduced sullicientlv to permit the grain to be scraped from the.

ground the blocks 195 and 197 are removed i and the blocks 16a and 165 are placed in position, so that when the roller 184- passes over the block 164 the stop 180 will be lowered into the path of the roller 153 and hold the fork 105 in the dotted line position, Fig. 12. After the fork has scraped a charge of grain from the ground and dis` charged it upon the feeder B, the stop 180 is raised out of the path of the roller 153, so that the same may swing forward when the fork 105 swings backward to the position disclosed by Fig. 1, as it passes from the underside to the upper side of the boom 19. Tripping` of the stop 180 is automatically accomplished by the roller 184` and the intervening mechanism when said roller 184 is depressed by the block 165.

While the apparatus is reducing the stack to the ground the top of said stack is mailitained in substantially a level state by swinging the boom slowly from one side of the stack to the other, which is readily accomplished by the operator, through the intermediacy of the handles 92. During such swinging of the boom 19 from side to side, it

VJturns on the pin 17, but if considerable lateralmovement is desired the druln 73 is actuated, so that the boom may turn upon the axis provided by the shaft 10. As the height of the stack is reduced the boom is gradually lowered by loosening tlm` clamp 27 from the rod 26 at intervals and paying L n .n4 outthe cable 76 as required.

With the apparatus constructed and operated as above described, one operator can Die \ hanger 110e.

in raised position until incarne quiclrly and eilicientlylfeeda large stack of grain to "the thresher A, Iin substantially, a

Preparatory to moving `the thresherfipm place to place the members 1a and '2a are` folded and the `boomis swung around beside the thresher, so that fthe same can pass through gates, beneath telephone wires, etc.

While I have shown the feeder attached to a thresher,`it is to beunderstood that itis also applicable to hay balers, loaders and other implements to which hay or grain is tobe fed. y s

The modied form of fork disclosed `by Figs. lllto 16, inclusive, is similar ina great many respects tothe preferred formas indicated by corresponding referencenumerals with exponents, hence lit Ais not deemednecessary togo into details, exceptwith reference to the new features. This type `of `fork `is not intended "to travel in `cycles about the boom as in the preferred form, butis drawn back and forthlby cables 225 land` `226, `respectively, which may be actuated by any suitable n1eans`(not shown). The cable 225 is attached to a bellscrank `228, pivotally connected by a pin 229 `to the rearmost Said `bell-crank 228 is operably-connected to a pawl` 14:0, which coacts with the rack 127al towardwhich it is drawn by sa yspring 231. The cable `226 extends through an eye 233 depending from the fore mostl-Jmember 118%V Said cable 226 is connected to a `bail `235, connected by pivots236 to opposite sides of the foremost hanger 110% The 4rearlend "ofthe fork 105a has an upwardl :extendinglug 238 for engagement with a ook2240, connectedat its `upper forked 4ends to the side `bars 116a of the carriage 114e. `Afterlthe fork 105 hasfbeen trippedto depositits load uponthe thresher feeder, the `carriage is drawn baekwardly with said forlrin a depending-positionuntil the same strikes the stack and is swung upward"` thereby to `the position disclosed by Fig. 14. As theffork 105 swings upwardly its 1lug238 engages the `hook 240 which supports Athe for asit continues its'backward movement. Beforethe fork 105 reachesthe end of its backward movement the cam 15()n is rocked into engagement with the roller onthe fork arm^15`11a andholds the fork in raised positioniafter it moves forward into the stack and the lug 238 is disengaged from the `hook 240, as shown on `Fig. 15. The cam `150El continues to support the fork `tripped at the thresher feeder.

Having thus described my invention, what y I claim and "desire to ent, is: 1.f In

secure by Letters "Pat` a machine ofthe character described,

boom mounted to swing vertically and lat*A erally and consisting of upperlongitudinal members, lieXible means connecting the adjacent ends of said members, lower longitildinal members spaced beneath the `upper members, flexible" means connecting the adjacent `ends of said lower' members, flexible curved means connecting the extreme ends of thevfupper and lower members, parallel members pivotally connected :at their upper and lower ends tothe upper and lower longitudinal members, respectively, and"means connected to the `adjacent `endsof the lower longitudinal members whereby the fsalne may be secured in rigid relation to each other.

2. In a machine of the `character described, a support, aboom operably connected *to said support, a drum mounted on said boom, a cable attached atone end tosaiddrum -and at its `opposite end to the boom, `a `sheave around which said cable extends, ayoke in which said sheave `is mounted, a couuterbalance spring connected to said yoke and the support, an endless `conveyor`arranged `to travel around the boom, and means on said conveyer for taking `grain `from `a stack.

3. In a machine of the character described, a support, a swingable frame mounted on saidsupport, a turntable operably connected to saidswingable frame, `ahanger depending from said turntable, a boom operably connected to said hanger, anda forkarranged totraverse said boom.

4. In a machine of the character described, asupport, a swingable Aframe Vmounted on said support, a turntable operably `connected to `said swingable frame, a hanger depending from said turntable, a boomconnectedto said hanger, an endless conveyor to traverse said boom, a" train of gearing extending from the support to the `boom to "drive the conveyor, and a fork actuated by said conveyer and mounted on the boom.

In a machine of the character described, a boom, a carriageto traverse said boom, a fork swingably connected to said carriage, an armyieldably connectedto the rear end of the forlna roller on the free end of said arm, a cam for engaging said roller to hold thearn and the fork in position to carry a load, and `means for disengaging said cam from `the rollerto allow the fork `to -dischar' ethe load." v

`6. L n amachine of the character described, a carriage, a fork operably mounted on said carriage` and adapted to-swing down to, approxirnately, a vertical position, a stop on the carriage engaged bythe fork when the same swings downwardly, and` means for adjusting said stop in and out of the path of the fork.

7 In a machine ofthe character described, a ca-rriagefa fork operably mounted on said carriage and adapted to swing down A`to,`a`,p proximately, a verticalposition, a stop on the carriage engaged by the fork when the same swings downwardly, and a latch-bar on the carriage .for-moving said stop in and outof ythe path of the fork.

8. In a machine of the character described, a carriage, arfcrlr operably mounted on said carriagegand adapted to swing down to, approximately, a vertical position, a stop on the carriage engaged by the. fork when the same swings downwardly, a latch-bar on the carriage for moving said stop in and out of the path ofthe fork, and a detent to prevent accidental movement of said latch-bar.'V

9. In a machine of the character described, a carriage, a fork operably mounted on said carriage and adapted to swing down to, ap-

proximately, a vertical position, a stop on the carriage engaged by the fork when the same swings downwardly, a latch-bar on the carriage for moving said stop in and out of thepath of the fork, a boom traversed by the fearriaga, and means on said boom for actuating said latch bar. v

10. In a machine of the character described, a carriage, a fork operably mounted on said carriage andv adapted to swing down to, approximately, a vertical position, a stop on thepcarriage engagedby the fork when the same swings downwardly, a latch-bar on' the carriage for moving said stop in` and out of the path of the fork, a boom traversed by the carriage, means on said boom to cause the latch-bar te move the stop into the path of the fork, and means on theboom to cause the latch-barV to move the stop out of the path of the fork. V11. In a machine of the character described, a carriage, a fork operably mounted on said carriage and adapted vto swing down to,-approxima tely, a vertical position, an arm yieldably connected to said fork, and a stop on the carriage engaged by said arm when the fork swings downwardly.

' 12. In Aa machine of the character described, aboom, a carriage to traverse said boom, a fork operably connected to said carnected to the foremost hanger, and a pawl and ratchet means to prevent thek hangers mage, means forholding .said fork in posi- Vtion to receive and carry a load, a retainer on the carriage to coaetwith the foi-l; 1n holdingthe load thereon, and means connected to the carriage and said retainer to vautomaticallyV swing thesame into engagement with the load when the fork'is in carrying position and away from the load when the fork dumps.

13. In a machine of thercharacter described, a carriage, hangers pivotally connected vto said carriage, meansconnected to the lower ends of said hangers to cause them to operate in unison, a fork operably confrom swinging forwardly when the fork is loaded. s Y

14, In a machineY of the character described, a carriage, hangers pivotally connected to said carriage, means connected to the lower ends of said hangers to cause them to operate in unison, a fork operably connected to the foremost hanger, a detent con nected to one of said hangers, and a segmental member depending from the carriage and provided with a recess to receive said detent and prevent the hangers fiom swinging baclrwardly when the fork is in position to take a load.

`15. In a machine of the character described, a carriage, hangers pivotally connected to said carriage, connecting bars pivotally secured to the lower ends of said hangers, a forl operably connected to the foremost hanger, a retainer operably connected to the carriage to coact with the fork in holding a load, and members operably connected to the foremost hanger and said retainer to move the same toward and away from the fork.

16. In a machine of the character described, a carriage, hangers pivotally connected to said carriage, connecting bars pivoted to the vlower ends vof said hangers and of such length as to cause the hangers to converge toward their lower ends, a fork operably connected to the foremost hanger, a pawl pivoted to the rearmost hanger, and a segmental ratchet-bar depending from the carriage `and engaged by said pawl to prevent the hangers from swinging forwardly when the fork is loaded.

17. In a machine of the character described, a carriage, hangers pivotally connected to said carriage, connecting bars pivoted to the lower ends of said hangers and of `suoli length as to cause the hangers to converge toward their lower ends, a fork operably connected to the foremost hanger, a pawl pivoted to the rearmost hanger, a segmental ratchet-bar depending from the carriage and engaged by said pawl to prevent the hangers from swinging forwardly when the fork is loaded, means operablymounted on the connecting bars to support the fork in position to take on and carry a load, and means to automatically disengage the aforesaid means so that the fork may discharge the load.

18. In a machine of the character described, a boom, an endless conveyor to traverse said boom, a carriage to traverse said boom, a draw-bar connecting the forward portion of said carriage to the conveyer, Aresilient means connecting the rear portion of the carriage to the conveyor, and a fork operably connected to the carriage.

19. In a machine of the character dcscribed, a boom, a carriage to traverse said boom, a fork swingably connected to said carriage, a cam rockably-mounted on the carriage to hold the fork in position to carry a load, a trip lever connected to said cam to disengage it from the fork, Ineens on the boom for actuating said trip lever, and means on the carriage to hold the earn in positionfor engagement With the fork when the same is restored to carrying position.

20. In a machine of the character de scribed, e carriage, hangers pivotally eonnected to seid carriage, eonneetingbars piv otally secured to the lower ends of said hangers, a fork operably associated with said connecting-bers, a retainer on the eer` ringe to eoaet with the fork Vin holding e,

Irz:

load thereon, `and means pivotally connected to one pair of hangers and yieldably connected to seid retainer to swing theszune into engagement; 'with the load when the fork is in carrying position and away from the load When the fork dumps.

In testimony whereof l :ifiix my sigrmturej in the presence of two Witnesses.

HARRY A. BEAN.

Witnesses: l

' FRED C. FISCHER,

L. J.,FISCHER. 

